dairy
How Long Does Greek Yogurt Last?
Greek Yogurt lasts 1–2 weeks in the fridge (unopened, by best-by date). Store upside down — this creates a vacuum effect that slows microbial growth and extends freshness by a few days.
Fridge
1–2 weeks
unopened, by best-by date
Counter
1–2 hours
maximum at room temperature
Freezer
1–2 months
texture becomes grainy; best for smoothies
Once opened/cut
5–7 days
opened container, refrigerated
Storage Tips
- Store upside down — this creates a vacuum effect that slows microbial growth and extends freshness by a few days.
- Do not stir in the liquid (whey) that separates and pools on top — pour it off or stir back in; it contains protein and should not be discarded if using the yogurt for nutrition.
- Use a clean spoon every time; introducing residue or saliva from used utensils accelerates spoilage.
How to Tell If Greek Yogurt Has Gone Bad
Signs to look for
- Mold (any color) on the surface — even a small spot means the entire container should be discarded.
- Very strong sour or "off" smell beyond normal yogurt tang, resembling spoiled milk.
- Yellow or pink discoloration in the yogurt itself (not just the whey layer).
Frequently Asked Questions
Is the liquid on top of Greek yogurt safe?
Yes — that is whey, the liquid portion of milk that was not fully strained out. It is rich in protein and perfectly safe. You can pour it off (some use it in smoothies or baking) or stir it back in for a looser texture.
Can you eat Greek yogurt after the expiration date?
Possibly — yogurt's acidity naturally inhibits bacteria, so it is often safe 1–2 weeks past the best-by date if unopened and properly refrigerated. Smell and look for mold; sour (beyond normal tang) and moldy = discard.
Can you freeze Greek yogurt?
Yes, but expect a grainy, watery texture when thawed — the freeze-thaw cycle disrupts the protein structure. Frozen Greek yogurt works well blended into smoothies, used in baking, or as a base for frozen bark treats. Not ideal for eating plain.
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